20113103245 has 16 divisors (see below), whose sum is σ = 25208190720. Its totient is φ = 15390247104.

The previous prime is 20113103221. The next prime is 20113103267. The reversal of 20113103245 is 54230131102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20113103245 - 2¹³ = 20113095053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910437 + ... + 932266.

It is an arithmetic number, because the mean of its divisors is an integer number (1575511920).

Almost surely, 2^20113103245 is an apocalyptic number.

It is an amenable number.

20113103245 is a deficient number, since it is larger than the sum of its proper divisors (5095087475).

20113103245 is a wasteful number, since it uses less digits than its factorization.

20113103245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842804.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20113103245 its reverse (54230131102), we get a palindrome (74343234347).

The spelling of 20113103245 in words is "twenty billion, one hundred thirteen million, one hundred three thousand, two hundred forty-five".